Improved gas-producing apparatus for use in metailurg-y, glass-making



' several' views.

.being the compressed-air chamber, and the latter the tire or gas-producing chamber.

gli/wiitcll i ,Satana tin .IA-COE GREEN, 0E Nonni Letters Patent No.` 86,529,

IMPROVED GAS -PRODU'CING- APPARATUS'FOR USE IN METAI-LUIl-RG-Y, AND FOR OTHER PURPOSES.

sTowN, PENNSYL'VANIA. Za-tell February 2, 1869. I

GLASS-MAKING,

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern: V

Be it known that I, JAcoB GREEN, of Norristown, Montgomery county, Pennsylvania, hayeinvented ce1'- tain Improvements in Gas-Producers; and I do hereby declare the following to be a full, clear, and exact description of the same. l

' My invention relates to apparatus for producing iulammable gases, to be used in furnaces situated at a distance from the producer, and lnyinvention consists- First, in combining with a gas-generating chamber a compressed air-chamber, communicating with the said generating-chamber below the grate, allsubstantially as described hert-after, so that the supply of air under pressure, for supporting combustion, may be uniformly distributed ben Iath the said grate.

Secondly, in admitting the air at or near the top of the compresseri-air` chiara-er, and permitting it to es. cape, at or nearethe bottom ofthe same, into the ashpit, as described hereafter, so' that the attendants, whose duty lit is to manipulate .the iire, may not be exposed to deleterious gases.

Thirdly, the combination, substantially as described, of' a steam-boiler witha gas-producing chamber, so that an economical lsupply of steam or water may be discharged below the grate.

Foru-thly, causing the compressed gases, after leaving the generator, to control the supply of air-to "the comp1esse .lair chamber, by` the devices hereinafter described, or any equivalents thereto. r

In order to enable others skillediuthe art to make and use my invention, I will now proceed Ato describe its construction and operation, reference being had to thel accompanying' drawing, which forms a part of this specification, and in which- Figure l is a transverse section of 1 producer; v

Figure 2, a sectional plan on the line 1 2, tig. 1; and

Figure 3, a vertical Section on the line 3 4, iig. 2.

Similar letters referto similar parts throughout the ny improved gas- The structure used in the present instance, for carrying out my invention, consists of the side walls A and A', the end walls B and B', and the partition-wall O, the whole being properly roofed, and arranged so as to enclose the two chambers, D and E, thc toi-mer In the air-chamber D, near the roof, is an opening, a, through which'to force a supply-otair, and in the chamber E is a grate, b, (inclined in the present instance,) for receiving the fuel.

yA number of openings, e, in the partition-wall C, aord communication between the air-chamberD and thc ash-pit 1, beneath the grate, and above these openings, and in the same partition-wall, is a series of holes, f, which are provided with' detachable stoppers, and the usc of which will he rendered apparent hereafter.

-posite end of which is connected a increase, thel piston m will rise in the c operate the throttle-valve j, so as to diminish the area.

umes, by any suitable arrangement of pipes, or water4 may be discharged upwards in jets to the grate-bars, when it is quickly converted into the desired steam.

The steam decomposed, by passing through the fuel, unites wth'the products of combustion, and the combined gases are permitted to pass from the lire-chambe'r E, through openings x in the side wall A, into the 4main gas-flue 71', adjacent to which is arranged the compressed-air passage i, and in the latter is a throttlevalve, j, connected to one end of a beam, k, to 'the oppiston, m, closed at the top, but communiating belo'w with the main'gas'- due Zu'- There are one or more doorways in the side or end walls of thechamberD, through which access can he gained to the latter,

furnished with tightlylhe fuel may` vertical passages n in the partition O, or the boiler may be provided with vertical tubes, through which the fuel can be dropped on tothe grate.

fitting doors.

Y It is not essential that there should be a'hoiler above the tire, as steam or water under pressure may be conveyed from any adjacent boiler or reservoir to the ashpit; but where there is no such boiler, it is advisable, on the score of economy, ber, as-described. Moreover, the location of a boiler at this point tends t0 absorb the -heat and cool the gas, thereby rendering it more dense.

The gas that is the products of combustion, combined with the decomposed steam, is forced from the tire-chamber, through thevpassage i, to the furnace, where it has to be consumed.

Should the volume and pressure of gas in the flue h `vlinder q, and

of the air-passage, while a diminution o of gas will insure a corresponding incre of the air-pass, ge.V The result of thi tively uniform discharge of gas,

f the pressure ase of the area s is a compara It will be evident, however, that it is not necessary to adhere tothe regulating-apparatus illustrated and described in carrying ont this feature of my invention, asxother device as media for causing the gases to regulate the supply of air.

ments, inserted through the openings f f in the partition-wall C, and the grates may' be cleaned from time to time from below, through the openings. e. As the presence of attendants is accessory in the compressedand from which' the ashes may be v withdrawn, lthe doorways, however, being in all cases be deposited on the grate, through I and the beam k can' be so weighted as to insure uniformity of action.

s, equally eiiicient, may be employed` rlhe fuel maybe manipulated by suitable instru- 'air chamber for performing these duties, it is important that the fresh air should be ladmitted at the top,

thereby maintaining the chamber in a condition freel from deleterious gases, The air, too, admitted at the top into a large chamber, insures an uniform distribution'of'the compressed air to the ash-pit,

The maintenance of the gas nnde'r pressure within the fire -chamber has this beneficia] effect, among others: slight leakages are readily detected,4 and are as easily repaired, whereas, in the absence of' ,the pressure, the outward air would have a tendencywto find its Way, without being'ohs'erved, into the'gas-tlnc, and to there consume the gases at a pointwhere the consumption is equivalent to a waste of fuel. Moreover, the consumption of the'gases in the lines by the admission of air, resulting from the absence of internal pressure, causes the rapid destruction of the iues themselves, if not'made of very refractory and. expensive material.

Without confining myself to the exact form of strncture, or to the precise arrangement of parts described, I claim as my invention, and vdesire to secure by Letters Patent- 1. The combination, with a gas-generating chamber, of a'compressed-air chamber, communicating with the said generating-chamber below-the grate, all subst-:1ntially as and for the purpose herein setforth.

2. The said compressed-air chamber, having an ope'ning, or openings, at or near the top, for the admissioxrof air under pressure, and discharge-openings helow, into the ash-pit, as and for the purpose specied.-

3. The combination, substantially as described, of a steamfbolerY with a gas-generating'charnber: 4. Causing the compressed gases, after leaving the generator, to control the supply of air to the cornpressed-air' chamber, through the medium of the devices herein described, or any equivalent to the same.

In testimony whereof', I have signed my name tol this specificatiomin the presence or two subscribing witnesses.

' JACOB GREEN. Witnesses:

JOHN WHITE, l HARRY SMITH. 

